130 oln, 50/34 and 12/32. The builder has the chainset I'm using. I've seen a few Campagnolo builds.Will you be 135 rear drops?
There are a few 130 11s available, but it might affect chainline if you're using modern chainset/bb with those short stays - a large 1st gear can add to potential trouble.
At least you won't be needing 2 chains!